[Cuis-dev] Making Cuis Unicode-only and VectorGraphics-only. (was Re: Alternative arrows)

[Juan Vuletich]

On 10/19/2022 7:38 PM, Douglas Brebner via Cuis-dev wrote:
> On 19/10/2022 20:33, Juan Vuletich via Cuis-dev wrote:
>
> I really like the idea of having ligatures and fancy symbols.
>
>> And yes, this could open the door to '<=', etc just like Fira Code 
>> with ligatures. It could behave exactly like that. We'd need to use 
>> shout for ASCII->Unicode and do the conversion back to ASCII for 
>> save. Files are plain ASCII, Smalltalk tools look fancy.
>
> Just curious, why do files have to stay plain ASCII and not become UTF-8?

They don't. If an UTF-8 file only uses ASCII characters, it is 
automatically ASCII. In other words, ASCII is a subset of UTF-8 and any 
ASCII file is automatically UTF-8.

Note that by ASCII we mean 7-bit ASCII, characters with codes between 0 
and 127.

In this case, if we use ':=' for assignment and '^' in files, most code 
would be pure ASCII. If we use non-ASCII Unicode arrows in code, then 
the file is no longer ASCII, and this could make it harder to port or 
share common code with other Smalltalks.

HTH,

-- 
Juan Vuletich
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